drive.
e. Continue normal system operation.
7. Assume 1) the HDA on disk
to
(system device) Is not damaged and Z) the failure Is in disk drive fO which will take too long to repairCOMPANY PRIVATE
-A7.0 RECONFIGURATION
A7.3.1 DISK RECONFIGURATION SCENARIOS
and 3) • spare disk drive. The desired result Is to delete the failing deylce, to move the disk pack (HDA) from the tailing device to the spare device and to continue normal operation. Note that B8S-lx (FMO) HOAs can be r •• oved by • C£ and moved to 8 spar.
drIve. Operators can .ove 8~4-4x drives themselves.
a. This aSSUMes that a spare disk drive has been physically configured and that the HOA norma", mounted on the storage device Is not currently used by NOS/VE, I.e. the disk drive Is defined in the Installed physical configuration but not In the .nstalled logical configuration. If these assumptions are not valid, then folloM one of the earlier scenarios concernlno 8 tailing disk storage element.
b. Remove the disk pack (HDA) froM drlYe
to
and mount the pack on the spare drive.c. If the disk pack was moved to chennel '2 use the SETVE command to change the deadstart channel from 0 to 2.
d. Perform 8 contlnuatlon deadstart and request operator intervention.
e. If necessary change the SET_DEADSTART_CONTROLLER system-core command to specify the product-IdentifIcation of the controller.
f. Change the SET_OEADSTART_DEVICE system-core co •• and to Identify the ·unlt number of the spare drive.
g. from within the leU use the INSTAll_LOGICAL_CONFIGURATION subcommand to 'exe I ude" dr tva '0 and 'I nc lude' the spare drive.
h. Contlnue normal system operation.
A7.3.2 TAPE RECOHFIGURATION SCENARIOS
LIsted betoware scenarios for possible h:8rdware 'allures which may occur (or be detected) while usIng tape peripherals as configured In configuration I I .
~. Assume a failure In the tape controller has caused a NOS/VE Interruption. The desired resu.t Is to remove the failing tape controller from the NOS/VE conflguratJon to altoM diagnosis and repair t~ occur In the NOS state concurrent with ~OS/VE execution.
e. Perform 8 continuation deadstart and request operator Intervention.
b. From within the
LeU,
,e-Inst.l I the lo~lcat configuratIon and 'exclude' channel 6.c. Continue operation without the tape controller.
d. When the tape control'er has be~n re,alred, execute the LeU to re-lnstall the logical configuration and 'Include' channel '6. Note that the newly Installed log'ca' configuration Hill not become active until the next contInuation deadstart.
e. When convenient do a TERMINATE_SYSTEM and perform 8
SOFTWARE RELEASE BULLETIN NOS/VE (CYCLE 18)
NOS/VE Peripheral Maintenance and Support A7.C RECONFIGURATION
A7.3.2 TAPE RECONfIGURATION SCENARIOS
84103/12 controller from the NOS/VE configuration to allow diagnosis and
repair of the .'ement to occur In the NOS state concurrent wJth
c. Continue operation without the tape controller.
d. When the tape controller has been repaired, repeat the falling element and continue NOS/VE execution.
a. Use the 'CU to re-Inst." the physical configuration Information fn the Installed physical configuration which
chan:gedabove.
a. Perform a continuation deadstart.
b. After deadstart run the PCU to Instal' a new physical configuration which omIts the failing tape unit and defines the replacement.
c. Do a TERMINATE_SYSTEM and perform another continuatIon deadstart to activate the newly Installed physical configuration.
d. Continue normal system operatIon.
COMPANY PRIVATE
-A7.G
RECONFIGURATION
A7.4 CONFIGURATION 12 - MULTIPLE CONTROLLERS
channel 0 TERMINATE_SYSTEM when convenient and then folloN the steps beioM emitting the operator Intervention and consequent
leU
execution.A7.4.1 DISK RECONFIGURATION SCENARIOS
The following describes the recommended approach for dealing with the faIlure of one of the two disk controlters in configuration '2 above.
b. Perform a continuation deadstart and request operator Intervention.
NOS/VE (CYCLE 18)
NOS/VE Peripheral Maintenance and Support A7.0 RECONFIGURATIOM
Al.4.1 DISK RECONFIGURATION SCENARIOS
81t/03/12
c. Change the SET_DEADSTART_CONTR~LLER system-core co •• and If the product_Identification of the controller on channel '1 is different than that of the control'er on channel
'0.
d. Fro. within the leU use the INSTALL_LOGICAL_CONFIGURATION subcommand to 'exclude' channel
'0.
e. Continue degraded system operation.
r.
When the failing controller has been repaired, use theLeU
to re-1nstall the loglca' configuration and 'Include' channel '0. Note that the neN'Y Inst.lled logica'
co~flguratlon wltl not become active until the next contInuation deadstart.
g. When convenient do a TERMINATE_SYSTEM and perform a continuation deadstart to activate the newly Installed
logical configuration.
h. Continue normal system operation.
Z. Assume the controller onehanne • • 1 tails. The desired result Is to return the 'ailing controller to the NOS confJguratlon for diagnosls and repair and to continue with degraded system operation minus the 'ailing controller.
a. Perform a continuation deadstart and ask for operator Intervention.
b. From within the LeU use the INSTAll_LOGICAL_CONFIGURATION subcommand to 'exclude' channel
'1.
c. Continue degraded system operation.
d. When the faillng controller has been repaired, use to fe-Instal' the loglcatcon'flguratlon and channel 11. Note that the newly Installed configuration wilt not become actIve until cont'nuatJoh deadstart.
continuation deadstart to activate the newly installed logical conf1guratlon.
A7.4.2 TAPE RECONFIGURATION SCENARIOS
The following Is the recommended approach for dealing with the failure of one of two tape controllers In configuration .2 above.
1. Assume one of the control1er~ on either channel '2 or channel '3 falls. The desired result is to r.turn the faitlng tape controller to the NOS state for d'agnosls and repair and to continue degraded operation minus the 'aIling controller.
a. Perform a continuation deadstart and ask tor operator inter ven't ion.
b. From within the leU use the INSTALL_LOGICAl_CONfIGURATIDN subcommand to 'exclude' the channel with the failing controller.
c. When the failing controller has been repaired, use the LeU to re-install the logIcal configuration and 'Include' the
COMPANY PRIVATE
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